static void (*pmi_pal)(void);
static int depth;
static int vga_compat;
-
/* --------------------------------------------------------------------- */
static int vesafb_pan_display(struct fb_var_screeninfo *var,
#ifdef __i386__
int offset;
- if (!ypan)
- return -EINVAL;
- if (var->xoffset)
- return -EINVAL;
- if (var->yoffset > var->yres_virtual)
- return -EINVAL;
- if ((ypan==1) && var->yoffset+var->yres > var->yres_virtual)
- return -EINVAL;
-
offset = (var->yoffset * info->fix.line_length + var->xoffset) / 4;
__asm__ __volatile__(
return 0;
}
-static int vesafb_blank(int blank, struct fb_info *info)
-{
- int err = 1;
-
- if (vga_compat) {
- int loop = 10000;
- u8 seq = 0, crtc17 = 0;
-
- if (blank == FB_BLANK_POWERDOWN) {
- seq = 0x20;
- crtc17 = 0x00;
- err = 0;
- } else {
- seq = 0x00;
- crtc17 = 0x80;
- err = (blank == FB_BLANK_UNBLANK) ? 0 : -EINVAL;
- }
-
- vga_wseq(NULL, 0x00, 0x01);
- seq |= vga_rseq(NULL, 0x01) & ~0x20;
- vga_wseq(NULL, 0x00, seq);
-
- crtc17 |= vga_rcrt(NULL, 0x17) & ~0x80;
- while (loop--);
- vga_wcrt(NULL, 0x17, crtc17);
- vga_wseq(NULL, 0x00, 0x03);
- }
-
- return err;
-}
-
static void vesa_setpalette(int regno, unsigned red, unsigned green,
unsigned blue)
{
+ int shift = 16 - depth;
+
#ifdef __i386__
struct { u_char blue, green, red, pad; } entry;
- int shift = 16 - depth;
if (pmi_setpal) {
entry.red = red >> shift;
"d" (regno), /* EDX */
"D" (&entry), /* EDI */
"S" (&pmi_pal)); /* ESI */
- } else {
- /* without protected mode interface, try VGA registers... */
+ return;
+ }
+#endif
+
+/*
+ * without protected mode interface and if VGA compatible,
+ * try VGA registers...
+ */
+ if (vga_compat) {
outb_p(regno, dac_reg);
outb_p(red >> shift, dac_val);
outb_p(green >> shift, dac_val);
outb_p(blue >> shift, dac_val);
}
-#endif
}
static int vesafb_setcolreg(unsigned regno, unsigned red, unsigned green,
.owner = THIS_MODULE,
.fb_setcolreg = vesafb_setcolreg,
.fb_pan_display = vesafb_pan_display,
- .fb_blank = vesafb_blank,
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB)
return -ENODEV;
+ vga_compat = (screen_info.capabilities & 2) ? 0 : 1;
vesafb_fix.smem_start = screen_info.lfb_base;
vesafb_defined.bits_per_pixel = screen_info.lfb_depth;
if (15 == vesafb_defined.bits_per_pixel)
}
}
+ if (vesafb_defined.bits_per_pixel == 8 && !pmi_setpal && !vga_compat) {
+ printk(KERN_WARNING "vesafb: hardware palette is unchangeable,\n"
+ " colors may be incorrect\n");
+ vesafb_fix.visual = FB_VISUAL_STATIC_PSEUDOCOLOR;
+ }
+
vesafb_defined.xres_virtual = vesafb_defined.xres;
vesafb_defined.yres_virtual = vesafb_fix.smem_len / vesafb_fix.line_length;
if (ypan && vesafb_defined.yres_virtual > vesafb_defined.yres) {
printk(KERN_INFO "vesafb: %s: "
"size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
(vesafb_defined.bits_per_pixel > 8) ?
- "Truecolor" : "Pseudocolor",
+ "Truecolor" : (vga_compat || pmi_setpal) ?
+ "Pseudocolor" : "Static Pseudocolor",
screen_info.rsvd_size,
screen_info.red_size,
screen_info.green_size,
info->flags = FBINFO_FLAG_DEFAULT |
(ypan) ? FBINFO_HWACCEL_YPAN : 0;
- vga_compat = (screen_info.capabilities & 2) ? 0 : 1;
- printk("vesafb: Mode is %sVGA compatible\n",
- (vga_compat) ? "" : "not ");
+ if (!ypan)
+ info->fbops->fb_pan_display = NULL;
if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
err = -ENOMEM;